公开(公告)号：US20230116180A1

公开(公告)日：2023-04-13

申请号：US17906418

申请日：2021-03-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KAZUYA MIYAFUJI ,  HIROKI HAYASHI ,  KENICHI NAGAMITSU

IPC: H01M4/60 ,  H01M4/04 ,  H01M4/62

Abstract: An electrochemical device includes a positive electrode including a positive current collector and a positive electrode material layer supported on the positive current collector, a negative electrode, and an electrolytic solution. The positive electrode material layer includes a conductive polymer, and a surface roughness (Ra) of the positive current collector is in a range from 0.7 μm to 1.7 μm, inclusive.